Google tweaks search to punish 'low-quality' sites

February 25, 2011 12:00:00 AM PST
Google says it has tweaked the formulas steering its Internet search engine to take the rubbish out of its results. The overhaul is designed to lower the rankings of what Google deems "low-quality" sites. That could be a veiled reference to so-called online "content farms" such as Demand Media's

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